1404794664 has 224 divisors, whose sum is σ = 4862363520. Its totient is φ = 370355328.

The previous prime is 1404794663. The next prime is 1404794689. The reversal of 1404794664 is 4664974041.

1404794664 is a `hidden beast` number, since 140 + 47 + 9 + 466 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (1404794663) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 529389 + ... + 532035.

It is an arithmetic number, because the mean of its divisors is an integer number (21706980).

Almost surely, 2^1404794664 is an apocalyptic number.

1404794664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1404794664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2431181760).

1404794664 is an abundant number, since it is smaller than the sum of its proper divisors (3457568856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1404794664 is a wasteful number, since it uses less digits than its factorization.

1404794664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691 (or 2672 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 1404794664 is about 37480.5904969492. The cubic root of 1404794664 is about 1119.9645673314.

The spelling of 1404794664 in words is "one billion, four hundred four million, seven hundred ninety-four thousand, six hundred sixty-four".